/**
 * WebP encoding and decoding functions
 * Simplified API matching Golang implementation
 */
import { WebPEncodeOptions, WebPDecodeOptions, DecodedImage } from './types';
/**
 * Encode an image file (JPEG, PNG, etc.) to WebP format
 *
 * @param imageFileData - Buffer containing image file data (JPEG, PNG, etc.)
 * @param options - WebP encoding options
 * @returns WebP encoded data as Buffer
 * @throws NextImageError if encoding fails
 *
 * Example:
 * ```typescript
 * import { encodeWebP } from '@ideamans/libnextimage';
 * import * as fs from 'fs';
 *
 * const jpegData = fs.readFileSync('input.jpg');
 * const webpData = encodeWebP(jpegData, { quality: 80 });
 * fs.writeFileSync('output.webp', webpData);
 * ```
 */
export declare function encodeWebP(imageFileData: Buffer, options?: WebPEncodeOptions): Buffer;
/**
 * Decode WebP data to pixel data
 *
 * @param webpData - Buffer containing WebP encoded data
 * @param options - WebP decoding options
 * @returns Decoded image with pixel data
 * @throws NextImageError if decoding fails
 *
 * Example:
 * ```typescript
 * import { decodeWebP } from '@ideamans/libnextimage';
 * import * as fs from 'fs';
 *
 * const webpData = fs.readFileSync('input.webp');
 * const decoded = decodeWebP(webpData);
 * console.log(`Decoded ${decoded.width}x${decoded.height} image`);
 * // decoded.data contains raw pixel data (RGBA by default)
 * ```
 */
export declare function decodeWebP(webpData: Buffer, options?: WebPDecodeOptions): DecodedImage;
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